diff --git a/include/villas/api/request.hpp b/include/villas/api/request.hpp
index fa344961e..42055251f 100644
--- a/include/villas/api/request.hpp
+++ b/include/villas/api/request.hpp
@@ -143,6 +143,12 @@ public:
 	{
 		return "api:request";
 	}
+
+	virtual
+	bool isHidden() const
+	{
+		return false;
+	}
 };
 
 template<typename T, const char *name, const char *re, const char *desc>
diff --git a/include/villas/format.hpp b/include/villas/format.hpp
index dbf02ff8f..099285b29 100644
--- a/include/villas/format.hpp
+++ b/include/villas/format.hpp
@@ -172,6 +172,12 @@ public:
 	{
 		return "format";
 	}
+
+	virtual
+	bool isHidden() const
+	{
+		return false;
+	}
 };
 
 template <typename T, const char *name, const char *desc, int flags = 0>
diff --git a/include/villas/hook.hpp b/include/villas/hook.hpp
index f0280c007..9b0804c4f 100644
--- a/include/villas/hook.hpp
+++ b/include/villas/hook.hpp
@@ -274,6 +274,12 @@ public:
 	{
 		return "hook";
 	}
+
+	virtual
+	bool isHidden() const
+	{
+		return false;
+	}
 };
 
 template <typename T, const char *name, const char *desc, int flags = 0, unsigned prio = 99>
diff --git a/include/villas/node.hpp b/include/villas/node.hpp
index 88f022ff5..7416ac1c6 100644
--- a/include/villas/node.hpp
+++ b/include/villas/node.hpp
@@ -381,7 +381,8 @@ public:
 		SUPPORTS_WRITE 		= (1 << 2),
 		REQUIRES_WEB   		= (1 << 3),
 		PROVIDES_SIGNALS	= (1 << 4),
-		INTERNAL		= (1 << 5)
+		INTERNAL		= (1 << 5),
+		HIDDEN			= (1 << 6)
 	};
 
 	NodeList instances;
@@ -434,6 +435,12 @@ public:
 		return getFlags() & (int) Flags::INTERNAL;
 	}
 
+	bool
+	isHidden() const
+	{
+		return isInternal() || getFlags() & (int) Flags::HIDDEN;
+	}
+
 	virtual
 	int start(SuperNode *sn);
 
diff --git a/src/villas-node.cpp b/src/villas-node.cpp
index 83474eb86..6375b60ac 100644
--- a/src/villas-node.cpp
+++ b/src/villas-node.cpp
@@ -107,27 +107,33 @@ protected:
 
 		<< "Supported node-types:" << std::endl;
 		for (auto p : registry->lookup<NodeFactory>()) {
-			if (!p->isInternal())
+			if (!p->isHidden())
 				std::cout << " - " << std::left << std::setw(18) << p->getName() << p->getDescription() << std::endl;
 		}
 		std::cout << std::endl;
 
 		std::cout << "Supported IO formats:" << std::endl;
-		for (auto p : registry->lookup<FormatFactory>())
-			std::cout << " - " << std::left << std::setw(18) << p->getName() << p->getDescription() << std::endl;
+		for (auto p : registry->lookup<FormatFactory>()) {
+			if (!p->isHidden())
+				std::cout << " - " << std::left << std::setw(18) << p->getName() << p->getDescription() << std::endl;
+		}
 		std::cout << std::endl;
 
 #ifdef WITH_HOOKS
 		std::cout << "Supported hooks:" << std::endl;
-		for (auto p : registry->lookup<HookFactory>())
-			std::cout << " - " << std::left << std::setw(18) << p->getName() << p->getDescription() << std::endl;
+		for (auto p : registry->lookup<HookFactory>()) {
+			if (!p->isHidden())
+				std::cout << " - " << std::left << std::setw(18) << p->getName() << p->getDescription() << std::endl;
+		}
 		std::cout << std::endl;
 #endif /* WITH_HOOKS */
 
 #ifdef WITH_API
 		std::cout << "Supported API commands:" << std::endl;
-		for (auto p : registry->lookup<api::RequestFactory>())
-			std::cout << " - " << std::left << std::setw(18) << p->getName() << p->getDescription() << std::endl;
+		for (auto p : registry->lookup<api::RequestFactory>()) {
+			if (!p->isHidden())
+				std::cout << " - " << std::left << std::setw(18) << p->getName() << p->getDescription() << std::endl;
+		}
 		std::cout << std::endl;
 #endif /* WITH_API */